I am on visit Employer higher me as a Sales man...

 If you work on a visit visa, this will put you in danger of being deported, this is if you complain
On the other hand, if your employer has made you your papers and your work visa, then you have rights and can complain at the Ministry of Human Resources and Emertization
We advise quickly leaving work, and looking for another job, with which to obtain a work visa
So that you can get your full rights